Commit: runtime(doc): update win_findbuf() return value

[Christian Brabandt]

runtime(doc): update win_findbuf() return value

Commit: https://github.com/vim/vim/commit/f39e7a89f32973040782f495cd0d60f1595b4a1b
Author: Mao-Yining <101858210+...@users.noreply.github.com>
Date: Mon Feb 2 10:15:04 2026 +0000

runtime(doc): update win_findbuf() return value

[] can also seen as `list<number>`

closes: #19311

Signed-off-by: Mao-Yining <101858210+...@users.noreply.github.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index 57f46c3d7..2b2dc92c3 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -1,4 +1,4 @@
-*builtin.txt* For Vim version 9.1. Last change: 2026 Jan 31
+*builtin.txt* For Vim version 9.1. Last change: 2026 Feb 2


VIM REFERENCE MANUAL by Bram Moolenaar
@@ -12612,8 +12612,7 @@ win_findbuf({bufnr}) *win_findbuf()*
Can also be used as a |method|: >
GetBufnr()->win_findbuf()
<
- Return type: list<number> or list<any>
-
+ Return type: list<number>

win_getid([{win} [, {tab}]]) *win_getid()*
Get the |window-ID| for the specified window.